Ball holder



FIG. 1 is a front perspective view of the design;

FIG. 2 is a front view;

FIG. 3 is a top plan view;

FIG. 4 is a rear view;

FIG. 5 is a bottom plan view;

FIG. 6 is a left side view;

FIG. 7 is a right side view; and,

FIG. 8 is a front perspective view of the ball holder, wherein the broken line showing of the ball is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a ball holder, as shown and described. 